Fritting furnace



May 31, 1932- J. F. RYAN E'r AL FRITTING FURNAGE v Filed Nov.15', 1929 MA yfia NE AT INIHA. JOM

ATTORNEYS Patented May 31, 1932y Unirse STATES JOHN F. RYAN, OF kW'OODBIRIDC'rIIil, AND CHARLES. STEGMAYER; QF' SEW'AREIL.

JERSEY, ASSGNORS TO THE MUTTON HOLLOW FIRE BRICK COMPANY,v OF `WOOD' BRIDGE, NEW JERSEY, A CORPORATION OF NEWT JERSEY FRITTING- FURNAGE n Application led November y15, 1929.`y Serial No. 407,428, n

This invention relates to improvements in fritting furnaces and has particular reference to a furnace' utilized for the production of glaze employed as a kcoating for ceramic bodies. 1

An object 'of theinvention is to facilitate the fritting process to which the glaze material is customarily subjected in the preparation of the final product, by so constructing and mounting the Crucible into which the material is fed that the source of heat utilized to produce the fritting operation will come into direct Contact with said cru'cible and thereby cause a more rapid liquefaction of said material.

Another'obj ect is to provide a construction of Crucible and burner which will permit of the liquefied material from the former to feed by gravity therefrom directly through the burner and its Combustion chamber into a crystallization pan. y v

The above and other objects will appear more clearly from the following detailed de-y scription, when taken in connection with the accompanying drawings, which illustrate a preferred embodiment of the inventive idea.

In the drawingsj Figure 1 isa vertical longitudinal section through a fritting furnace constructed in ac cordance with the invention Figure 2 is a transverse section on the line 2-2 of Figure 1; and y Figure Sis asimilar section on the line 3 3 of Figure 1`.

The furnace is shown as comprising a supe` porting framework 5, to the upper end of which issecured the body 6 of the furnace which may be made of rany suitable refractory material surrounded by the insulation 7 which is, in turn, enclosed in a metallick cas- Y ing 8.

lVithin the body 6 there is formed a crucible-receiving chamber 9 opening through the bottom of said body and having an exhaust flue 10 at its top through which pass the each other as to conform tothe contour of vand accurately center and 'support the `cruci` ble 13 within the chamber 9, whereby the same will be "positioneddirectly vabove the combustion chamber 14 of the burner 11 so that the flame from the latter will come into direct Contact with practically the entire surface of said Crucible, that is Lthe portions thereof betweenv said flanges, thus quickly and thoroughlyfheating the same. To further facilitate the heating action, the crucible is of inverted conical formation with the apex thereof acting to spread the flame to al exposed parts of the surface of the crucie. Crucible which extends upwardly from the upper end thereof and through the top of the body 6. Through this pipe, :the glaze material is continuously fed into the crucible Vbody where it is fritted by the action of the s heat applied to said body. As the materialk The burner 11 comprises a casting 18 havy ing a central opening 19 therethrough which p is in Vertical alignment with the'opening 16 in the Crucible so that the drippingsfthera from will pass through said opening 19 and drop into the pan 17, thereby alfordingra di` rect path for the liquid yfrom the Cruciblev downwardly through the combustion chamber and the burner casting into said pan.

An inlet pipe Y15 is provided for the f The casting further includes the burner coil 20 and trough 21 for receiving oil from the feed pipe 22. Fitted into the upper end of Y the opening 19 and having an opening 23 :3 aligned therewith and with the outlet 16 is a spreader 24 which assists in Creatin a proper flame in the chamber 14. The caslng 11 of the burner is open at its bottom for the admission of preheated air into the chamber l 14 and an additional air inlet 25 may be provided .in the side of said casing.

What is claimed is:

1. A fritting furnace comprising a body, an apertured yCrucible in said body, a burner l beneath saidy body havinga combustion'chalfn` ber, a burner element in said'chamber hav' ing an opening therethrough in. Vertical alignment With the aperture in saidcrucible,I and a flame spreader supported by said burner element and having an opening therein alignedwith the opening. in said element.

2. 'A fritting furnace coin'prisingjIrv afbody, an aperturedfcrucible in said body, a burner element beneath said crucible and having .5 anv opening therein through Which Amaterial from ksaid apertured .Crucible will low,.and a. fme spreader supported by said burner element andr also having'an opening. therein through which said material will flow. '-f In ,testimony whereof we have affixed our signatures.

JOHN F. RYAN. f CHARLES STEGMAYER.

fio 

